I currently use a Presonus Firepod and I feel that the AD/DA is lacking. So I'm ready to make a step up into the semi-pro world with upgrading the converters. My only outboard preamp is a modified Presonus Eureka. I've been researching my options and I have come up with a few:

1. Buy an RME FireFace 800, sell the Firepod, use Eureka as an additional preamp.

2. Buy a LynxTwo-C (6in/2out), use the Firepod preamps and Eureka preamp, and perhaps add additional preamps in the future.

Which option seems like the best for sound quality? I have read on here that the Lynx converters are a step above the RME converters. But there was a thread about the new Steinberg MR816 and there were rave reviews about the quality of the converters but I don't know how they would compare to the Lynx and RME. The LynxTwo came out in 2000 so it's almost 9 years old so I'm not sure if technology in the new converters is much better or not.

Well I think ultimately you need to decide whether you want to get out of the
firewire world and into the PCI base slot interface... (such as the Lynx Two as you mentioned). I definitely think there is a positive side to going with a direct connect compare to firewire but as the same time I am "if it works leave it" kind of audio nut. Having to deal with an overall new install can sometimes be a pain in the ass.
The safest and easiest route to upgrade your conversion will be to add an existing spdif or adat A/D D/A to your current firepod interface. The RME ADI-2 A/D D/A is a great option if you’re on a budget. It has a nice detail, clean character to it. If you have the budget stepping into something like an Apogee Rosetta 200 is well worth it! The Rosetta 200 has some nice features like SRC (sample rate conversion) soft limit and has a nice detailed image with alittle coloration. Having said all this... is a 2 channel A/D D/A conversion upgrade enough? Is it just you recording yourself on guitar or vocals or are you planning on recording more than 2 sources at once (full band , drums...). If not you could always take advantage of your adat option on your firepod and add an 8 channel unit. There are some great choices like the RME ADI-8, Lynx Aurora 8 or Apogee Rosetta 800 if you want to go this route as well. Hope this helps some and good luck!

I got a good bonus check a few years ago and bought a Lynx Two A model (shoulda got the C - hindsight's 20/20). I already had a Mytek 96 AD and a DA box, and a 828MkII that I wanted to remove from the equation as it did weird stuff.

I can hardly tell the difference between the Lynx and the Mytek AD after tracking, although I use the Mytek more often than not b/c I really think when all tracks are stacked that I'll get a better (more open, detailed) sound from the entire mix. I use the Mytek for DA too.

For the price, the LTwo is hard to beat, and the drivers are rock solid. Not having to deal with inferior firewire or usb on most mobo's or cards is also very nice.

However...If I had it to do all over again today... I'd get the Aurora and AES16 combo.

what kind of mics are you using, I think right now that mics and preamps will make a lot more difference than converters, not the first place to upgrade, Ive been through it went from behringer ada8000, to focusrite 428 then to ssl and from studio projects to hi end mics and lachapel pre amp, the converters made less difference than anything